Why do we spend one third of our lives in sleep?"'; dreams imply imperfect sleep; sleep interrupts all conscious relations with the phenomenal world'; Most conspicuous changes wrought during sleep physical, not physical; the most important events in human history initiated during sleep; spiritual influence of sleep illustrated by its privation; What is meant by God's resting on the seventh day of creation? Prominence given to the morning hour in the bible, and it's spiritual significance; our external and internal memory; in sleep we die daily; why we are not permitted to be conscious of the experiences of the soul in sleep.